هدف هذا العمل إلى دراسة تأثير بعض العوامل البيئية من درجات الحرارة ومدة الحفظ على إنهاء ظاهرة توقف التطوّر لدى ذبابة أوراق الزيتون Dasineura oleae F.loew (Diptera : Cecidomyiidae) ، و المتطفل الداخلي Walker Platygaster demades ((Hymenoptera: Platygasteridae . نفّذت سلسلة من التجارب لإنهاءِ هذه الظاهرة لليرقات، بتعريضها لتناوب حراري بين درجة حرارة ملائمة للنشاط (20 ± 1 oم) مع إضاءة طويلة 16 L : 8 D و رطوبة نسبية 75± 5% لفترات مختلفة (15، 30، 60) يوماً، ثم فترة برودة 7± 1 o م و ظلام كامل و رطوبة نسبية 75± 5% لمدة 15 يوماً، و ذلك بدءً من توقف التطور و بعد (30، 60، 90 و 120) يوم.
This work aimed to study the environmental factors influencing growth stopped of olive
leaf midge Dasineura oleae F. loew (Dipter: Cecidomyiidae) and its host
(Hymenoptera: Platygasteridae) Platygaster demades Walker, such as temperature and
reservation period. A series of experiments had been done to end this phenomena of
larvae by changing temperatures from suitable temperature at 20±1 °C accompanied
with different photoperiods 16 L: 8D and relative humidity of 75± 5% during 15, 30,
and 60 days, to low temperature at 7± 1 °C accompanied with complete darkness and
relative humidity of 75± 5% for 15 days. This had been done after 30, 60, 90 and 120
days of growth stopped.
References used
Baidaq, Z.M.; A.M. Ramadhane; and R. Abu Tara (2015). Biological synchronization of the endoparasitoid Platygaster demades Walker (Hymenoptera:Platygasteridae) with its host. The olive leaf midge Dasineura oleae F. Loew (Diptera: Cecidomyiidae). SSRG International Journal of Agriculture and Environmental Science. 2(3) November to December 2015
Baxendale, F.P.; and G.L. Teetes (1983). Factors influencing adult emergence from diapausing sorghum midge Contarinia sorghicola (Diptera: Cecidomyiidae). Department of Entomology, Texas A and M University, College Station, Texas 77843. Environ. Entomol., 12: 1064-1067
Beck, S.D.; and W. Hance (1960). Diapause in the European Corn Borer, Pyrausta nubilalis (Hubn.). Journal of Insect Physiology. 4: 304-318
Pastrami, manufactured from beef and abdominal fat and of a ratio of 3 meat to 1 fat,
was stored under refrigeration at (4±2 °C) and storage times (0, 15, 30, 60, 120, and 180
days). The effects of storage times on the most important chemical, micr
The research was conducted during the period between May 2014 and May 2015. The field work was carried out in the Astamo area of Lattakia within an orchard planted with citrus and olives in the form of single and adjacent sectors for each
This research discusses the affecting factors of biogas production
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